.body{
    display:block;
}

h1{
    font-family: Arial, Helvetica, sans-serif;
    font-weight: bolder;
    padding: 15px;
    text-align: center;
}

#board{
    margin: auto;
    display: flex;
    flex-direction: column;
    flex-basis: 100%;
    flex 1;
    width: 700px;
    height: 500px;
    padding: 25 px;
    border: 4px solid red;
}

.flex-container{
    display: flex;
    flex 1;
    flex-grow: 2;
    width: 100%;
    min-height: 0;
}


.flexBoxes{
   
    flex: 1;
    min-width: none;
    background-color: white;
    color: white;
}

.flexBoxes_Hover{
    flex: 1;
    width: 100%;
    min-height: 0;
    clear:both;
    background-color: black;
    
}

#reset{
    margin-left: auto;
    margin-right: auto;
    border-radius: 3px;
    border: none;
    background-color: red;
    color: white;
    text-decoration: none;
    padding: 7px 7px;
    text-align: center;
}

#reset:hover{
    background-color: pink;
    color: black;
}